As a web designer what is your favourite/most used colour palette file format? E.g.
I prefer .ASE because it's Adobe's universal colour format. It's dead simple for me to load my .ase files in Photoshop, Illustrator, and inDesign.
Even if another format also works that well, why not use .ase when we know it also works really well :D
The .ase format is Adobe's universal color format at least as of CS5 - for example Fireworks CS3 does not accept the .ase format, but instead uses the .aco format to access swatches/colors. As far as what I would like I typically use .ase whenever I can. You might take a look at a site like colourlovers.com - they offer palettes/colors/etc in a wide variety of formats (sadly no .aco) that are suited to users' tastes.